ÖBB-Infrastruktur

ÖBB-Infrastruktur owns the tracks, points, signals and most stations in Austria – but not a single train in the timetable. That's exactly why locomotives from companies with no connection to ÖBB roll over the Brenner, Semmering and Tauern lines.

Also known as: ÖBB-Infrastruktur AG · ÖBB Infra · ÖBB-Netz

AustriaAustriaInfrastructure & institutions8 min read

EIU

Role: infrastructure, not transport

0

Trains in its own timetable

15 kV

Traction power at 16.7 Hz

3

Alpine corridors: Brenner, Tauern, Semmering

Key takeaways

  • ÖBB-Infrastruktur runs no trains. It owns tracks, signals and stations and sells paths to every licensed transport company.
  • The ÖBB network is not the same as ÖBB transport. Locomotives from companies with no connection to the group run over the Brenner and Tauern lines.
  • The house rules at a station rest with the infrastructure manager, not with whichever company's logo happens to be at the platform.
  • Yellow is the colour of the infrastructure. Engineering trains, measuring vehicles and tower wagons belong on a different list from passenger and freight traffic.
  • The separation is required by European law and survives every group restructuring – it is the most stable frame of reference in the system.
Contents
  1. 1.Fact file
  2. 2.Business areas
  3. 3.Structure & brands
  4. 4.History at a glance
  5. 5.How to recognise the company
  6. 6.Strengths and weaknesses
  7. 7.What an infrastructure manager is – and isn’t
  8. 8.Why so many companies run on one network
  9. 9.From location to a clean sighting
  10. 10.Where the network shows its character
  11. 11.Whose track are you looking at?
  12. 12.Verdict
  13. 13.Frequently asked questions

Fact file

Role in the systemRailway infrastructure manager (EIU) – allocates paths, runs no trains
Group membershipPart of the ÖBB group under the ÖBB holding company, indirectly owned by the Republic of Austria
RemitThe Austrian federal railway network, including stations, signal boxes and traction power supply
Gauge1,435 mm on the main network, plus a few narrow-gauge lines
Traction power15 kV / 16.7 Hz – the same system as in Germany and Switzerland
Major projectsBrenner Base Tunnel, Semmering Base Tunnel, Koralm Railway
Who runs on the networkÖBB transport companies and dozens of private railway operators from several countries
Relevant for spottersThe right to set rules on stations and operational premises rests with the infrastructure manager, not the train operator
Official websiteinfrastruktur.oebb.at

Business areas

Network operation – tracks, points, signals, signal boxes and traffic control across the federal railway network
Path allocation – non-discriminatory allocation of timetable paths to every licensed railway operator
Stations – platforms, station buildings, lifts and passenger information
Traction power – its own power stations, converters and an overhead line network at 16.7 Hz
New build and upgrades – base tunnels, route diversions and four-track expansion sections
Property and land – operational railway land, private sidings and land near the railway

Structure & brands

Parent group:Österreichische Bundesbahnen (ÖBB)

Brenner Basistunnel BBT SE – joint project company with Italian participation
ÖBB-Bahnstrom – generation and distribution of the 16.7 Hz traction current as its own division
Network and stations – traffic control, signal boxes and station management under one roof

History at a glance

1991EU Directive 91/440 requires the separation of infrastructure and transport. This kicks off the restructuring across Europe from which independent infrastructure companies later emerge.
2000sThe Federal Railway Restructuring Act splits ÖBB into a holding company with separate businesses for passenger transport, freight, production and infrastructure.
Late 2000sThe infrastructure's construction and operating companies are merged into today's ÖBB-Infrastruktur AG.
2010sThe rebuilding of major hubs shapes the network – most visibly in Vienna, where a through station replaces the former terminus operation.
2020sThe Koralm Railway between Graz and Klagenfurt, the first of the major southern axes, enters service; the Semmering and Brenner base tunnels remain under construction.

How to recognise ÖBB-Infrastruktur

Does the train really belong to ÖBB-Infrastruktur?

Tick off everything that applies to the vehicle in front of you.

  • Yellow and orange vehicles in warning livery work for the infrastructure, not for train operators
  • Platform signage and wayfinding carry ÖBB design regardless of who calls there
  • Road-rail vehicles and tower wagons on service tracks are infrastructure equipment, not passenger or freight traffic
  • Signals and signalling technology follow Austrian regulations, even when a foreign locomotive is standing in front of them
  • House-rule notices and access bans at the end of platforms name the infrastructure manager as responsible party
  • Engineering-works logistics with ballast wagons and tamping machines run on infrastructure contracts, operated by other companies' railway operators

Strengths and weaknesses

What the company stands for

  • On a single network you can see vehicles from Austria, Germany, Italy and Eastern Europe
  • The Alpine corridors concentrate freight traffic on a few, easily accessible lines
  • Platforms are generally publicly accessible and offer legal vantage points
  • Major rebuilding projects briefly make historic operating patterns visible again
  • Uniform signalling technology makes it easier to understand how operations work

Where it falls short

  • The infrastructure manager itself is practically invisible in your photos – you always photograph someone else's train
  • Operational premises and construction sites are consistently off limits, even where they look freely accessible
  • Path occupancy and diversions change at short notice, so planned trips can come to nothing
  • House rules apply at stations, which can clash with extensive photography
  • If you're looking for a train's operator, the infrastructure manager won't give you the answer

Updated: August 2026 – If you’re standing at the Brenner and see an Italian locomotive hauling a heavy freight train, you’re photographing a train on Austrian track that belongs to neither ÖBB nor is operated by them. That’s made possible by ÖBB-Infrastruktur: it owns the rails, points and stations, but not a single train in the timetable. It sells paths – to anyone who is licensed.

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What an infrastructure manager is – and isn’t

A railway infrastructure manager (EIU) owns and operates the track: rails, points, signals, signal boxes, overhead line, and usually the stations too. A railway transport operator (EVU) owns vehicles, employs train drivers and runs trains. ÖBB-Infrastruktur is the former, not the latter.

This separation is not an Austrian peculiarity but European law. The idea behind it is simple: whoever owns the track must not gain an advantage for its own train operations from that ownership. Paths must therefore be allocated without discrimination – even to direct competitors of group sister companies.

EIURole: infrastructure, not transport
0own passenger or freight trains
16.7 Hztraction power frequency at 15 kV
3Alpine corridors with dense freight traffic

For you at the lineside, this yields the most important rule on this page: the network tells you nothing about the train. It tells you something about yourself – namely, on whose premises you’re standing.

Why so many companies run on one network

Passenger and freight trains from companies in several countries operate on the Austrian federal railway network. The group sister companies ÖBB-Personenverkehr and Rail Cargo Austria are among them, but only as two of many. In long-distance traffic, Westbahn runs commercially on its own account; in freight, German and Italian operators are active. Shunting and marshalling for the group’s own trains, in turn, is handled by ÖBB-Produktion.

Level Who that is What they own What you see of it
Infrastructure ÖBB-Infrastruktur Tracks, signals, stations the place where you’re standing
Transport ÖBB-Personenverkehr, Rail Cargo, Westbahn, private operators Vehicles and staff the train in your viewfinder
Brand Railjet, Nightjet, Cityjet a name, not a fleet the lettering on the coach
Keeper often a leasing company the individual vehicle the data panel
Oversight state authorities none of the above approval plates and inspection stickers

Anyone who keeps these five rows apart makes hardly any mistakes in their sighting logs. How you get from the vehicle to the right row is shown in the guide to identifying classes.

Yellow means infrastructure

Tamping machines, tower wagons, ballast wagons and road-rail excavators in warning livery work for the infrastructure manager. They mostly belong to construction firms and are operated by their railway operators – but the commission comes from the network side. If you collect such vehicles, keep them in a separate list from passenger and freight traffic.

From location to a clean sighting

Check your location

A platform, public footpath or bridge are fine. Embankments, ramps and operational premises are not – that's where the infrastructure manager's house rules apply.

Classify the train type

Passenger, freight or engineering train? This distinction decides which list the sighting ends up in later.

Read the data panel

The country code and keeper marking are on the side of the vehicle. Only here does an impression become a verifiable fact.

Note the train number

It links the vehicle to the path. Without it, it's hard to reconstruct afterwards which company ran the service.

Flag uncertainty

Note separately what you read and what you guessed. An open gap is worth more than a wrong attribution.

Is your spot worthwhile for non-network operators?

Four features decide how many non-network companies pass your location.

Freight traffic and border proximity are the strongest drivers – during the day in domestic traffic it stays one-note.

Where the network shows its character

The Austrian Alpine corridors are, from a spotter’s point of view, this infrastructure manager’s greatest asset. On the Brenner line at Gries, heavy trains work their way up the gradient; on the Semmering Railway at Breitenstein, modern traffic runs over a 19th-century line; on the Tauern Railway, passenger and freight traffic mix in a confined space.

The hubs look different. Vienna Hauptbahnhof and Innsbruck Hauptbahnhof show mainly passenger traffic, but at high density. And Kufstein is the classic changeover station, where locomotives and crews are swapped.

Keep cross-border traffic straight

With Traintrack you record which operator took over where – still traceable weeks later.

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Whose track are you looking at?

The location is unproblematic if …

  • you're standing on a platform behind the safety line
  • you're on a public footpath or a road bridge
  • you haven't passed a barrier, gate or prohibition sign

Caution is warranted if …

  • the platform trails off into an unpaved area
  • construction work is under way and areas are provisionally cordoned off
  • you'd need to get closer to the track centre for your shot

Don't go any further if …

  • you would have to step onto tracks, ballast bed or marshalling areas
  • an operational site begins – a depot, stabling sidings, a private siding
  • staff ask you to leave the area

The difference between a platform and an operational site is the one thing that really matters if in doubt. Why this is more than just a question of house rules is explained in the article on tracks and penalties; the distance rules are set out under safety distance at the track.

Construction sites are not a grey area

At major projects like the base tunnels, temporary sidings and material stores spring up that look like ordinary sidings from a distance. They are operational premises with their own access rules. Flying a drone over railway installations is also restricted – the basics are summarised in drones over railway installations.

Verdict

For spotters, ÖBB-Infrastruktur is the ground you stand on, not the subject. It explains why vehicles from half of Europe run on Austrian tracks, and it determines where you’re legally allowed to stand. Both matter – but neither gets you a single step further in identifying an individual locomotive.

Accepting that saves you a lot of confusion: the network and the train are two separate questions, and only the data panel answers the second one.

Verdict in brief

ÖBB-Infrastruktur owns the track and allocates paths. It determines your location, but never the operator of the train you're photographing.

From an Alpine spot to a searchable archive

Note the keeper and train number rather than just the group colour – then your sighting will still be usable in ten years.

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Summary

  • If you're spotting in Austria, you almost always stand on ÖBB-Infrastruktur premises, but mostly photograph trains belonging to other companies.
  • The three Alpine corridors of Brenner, Tauern and Semmering are why so many different keepers gather within a few kilometres.
  • Network ownership doesn't help you identify a train – for that you need the data panel and vehicle number.
  • Operational premises are the point where spotting tips over: the platform is accessible, everything behind it isn't.

Frequently asked questions

Does ÖBB-Infrastruktur run its own trains?

No. ÖBB-Infrastruktur is a railway infrastructure manager. It maintains tracks, points, signals and stations and allocates paths. Passenger trains are run by ÖBB-Personenverkehr and private operators, freight trains among others by Rail Cargo Austria. Even engineering trains and measuring vehicles commissioned by the infrastructure manager are operated by licensed railway operators.

Why do I see so many foreign locomotives at the Brenner?

Because network access must be non-discriminatory. Any licensed railway operator can buy paths, regardless of who owns the track. At the Brenner, that's used among others by Lokomotion and TX Logistik. That's why vehicles from several countries line up one after another at the Brenner line at Gries.

Who owns the platform I'm standing on?

Usually ÖBB-Infrastruktur. That's not a formality: ownership comes with house rules. Standing on platforms is usually permitted, entering tracks, ramps and operational premises is not. What follows from that is set out in the article on house rules at stations.

Is ÖBB-Infrastruktur a public authority?

No. It is a public limited company within the ÖBB group. Oversight, licensing and safety supervision rest with state bodies, not with it. That mirrors the division of roles that exists in Germany between DB InfraGO and the Federal Railway Authority (EBA).

Does every railway line in Austria belong to ÖBB-Infrastruktur?

No. Alongside the federal railway network there are regional, private and local railways with their own infrastructure, such as the Graz-Köflach Railway or the Zillertal Railway. For you that means regulations, signal aspects and contacts can change within a few kilometres.

What are the yellow vehicles on the sidings?

Mostly construction and maintenance equipment: tamping machines, ballast wagons, tower wagons, road-rail excavators. They work for the infrastructure but often belong to construction firms and are operated by their own railway operators. The warning livery is a safety feature, not a corporate colour.

Why does the timetable on Alpine lines change so often?

Because construction work in the mountains is tied to a few weeks of the year. If one gradient is closed, freight traffic diverts over a wide area onto other corridors. If you're planning a trip to the Semmering Railway or the Tauern Railway, check shortly beforehand whether the line is even being used.

Does network ownership help me identify a locomotive?

Hardly. It only tells you where you are. The operator is stated in the data panel, not on the track. A country code of A- only means Austrian registration, not an Austrian operator. How you get from an observation to a solid identification is described in the guide Who's actually running this train?.

Am I allowed to photograph signals and signal boxes?

From publicly accessible locations, photographing railway installations is generally possible. It becomes critical when you enter operational areas or take photos that interfere with operations. The basics are explained in the articles Are you allowed to photograph trains? and Understanding railway signals.

Where can I see the most different operators at once?

At border and changeover stations. In Kufstein, German and Austrian traffic come together; in Villach, the crossing to Italy and Slovenia. Locomotives and crews change there, and trains stand for longer than scheduled – ideal for documentation.

Log vehicles from ÖBB-Infrastruktur

Company, vehicle, location and date logged in seconds – and visible to the community.

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The operational level in the railway operator database

Who actually runs the trains, with keeper markings and identifying features on the vehicle.

Typical vehicles

Where you will find ÖBB-Infrastruktur

Spotting locations where you will regularly come across vehicles from this organisation – with viewpoints, the best light and coordinates.

All spotting locations in Europe →

More companies

Related guides from the blog

TT

Traintrack editorial team

This database covers the company and brand level of the railway. Group structures, shareholdings and transport contracts change all the time – confirmed details are in the fact file, and anything subject to change is marked as such. Who actually runs the trains is covered in the railway operator database.

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